Theophilus hessenbruch



T. HES SENBRUCH;

Stove-Plpe Damper. No. 85,931. Patented Jan. 19, 1869.

NVPEYERS. PHOTO-UTHOGRAPHER. WASHINGION. D. C.

Y plateyand a. fitter strut 69H Letters Patent No. 85,931, dated January 19,1869.

STOVE-PIPE DAMPER.

The Schedule referred to in these Letters Patent and making part of the same.

To an whom it may concern.

Be it known that I, Tnnorrmlus HESSENBRUGH, of the .city of Philadelphia, in the State of Pennsylvania, have invented a new and useful Improvement in Dampers for Stove-Pipes; and I do hereby declare that the following is a filll, clear, and exact description of the construction and operation of the same, reference being had tothe accompanying'drawings, making a part I of this specification, in which- Figure 1 is a vertical central. section of the said damper-and stove-pipe, and

Figures 2 and 3, plan views of the respective adjustable plates of thedamper, as applied to the pipe.

Like letters of reference indicate the same parts when in the difi'erent figures.

The nature of my invention consists, substantially as hereinafter described, in the construction and arrangement of a pair of simultaneously-adjustable damperplates, in such relation to each other, an'd to horizontal and vertical communicating portions of a stove-pipe, that whilst the draught fromthe fuehchamber of the stove can be regulated at pleasure, and with facility,

without causing any escape of gas into the room, the

carbonic-acid gas, or heavy, foul air, which settles at the bottom of the said room, will be discharged up through the vertical 'portion of the pipe, and thus the air of the-room be kept pure, as well as in a warm condition.

Referring to the drawings- A is the horizontal portion of the stove-pipe, and a, its damper-plate;

. B, the vertical portion of the pipe, and b, its damper- O, an adjustable. bottom on the lower open end of 'the'vertical pipe B.

' The portion A of the pipe forms an open communication between the stove (indicated by the faint lines M in fig. 1) and the vertical portion B,.and has "its damper-plate a secured upon journals, so that it can be operated to nearly close and fully open, alternately, the said pipe, as occasion may require, the 'plate a being notched out at a, so as to allowthe fuel-gas to escape. when thedamper is closed, as seen in fig. 2.

\The vertical portion B of the pipe extends downward from the intersection of the portion A, and opens' at two or three inches above the floor of the room in which the stove may be located, and has its damperplate b fixed to a horizontal shaft, b", which projects throughthe side of B sufficiently to form a handle, 12, whereby the saidplate b can be readily caused to either open or.close, partially or fully, the pipe Eat a short disgancf below the intersection of A with B, as shown 111 g.

The two damper-plates a and b are connected together by ,means of a stifl bar of wire, b, the ends of which-are articulated to the respective plates, so as to keep them in parallel planes, and cause any movement which maybe given to plate b (by means of the handle b') to be also given to plate a, asrepresented in the same figure. I

' The adjustable bottom 0 slips like a sleeve, in connection with the sides 'of the open lower end of B, so

- that when the said bottom, 0, is pushed nearly its full and any soot or ashe's'that may fall from the latter length upward, (as indicated by the dotted line's,) it will close the said open end of B, and when slipped downward, as represented in the drawing, it will allow a free entrance of air, gas, or dust, through its capacious openings, 0' c 0, into the: vertical portion B of the pipe, and at the same time aflord a cup for catch- 1 ing and retaining any soot or sparks that may fall from B. v

"It will be seen, when the damper-plates a and b are respectively in the positions shown in fig. 1, that, as the portion B of the stove-pipe is closed below the intersection of A therewith, (by the horizontal position of its damper-plate b,) and the portion A fully'opened,

(by the horizontal position of its damper-plate,)a full draught from the stove will be permitted, which is at times desirable, and especially so when the fire is being started; and it will also "be seen, as the two damperplates must move simultaneously in parallel planes, that when damper-plate b is turned to a vertical position, the damper-plate a"will also be brought into a like position, and thus close A, (with the exception of the gas-vent (1",) whilst B will be fully open' fiom its lower end upward; and that if the adjustable bottom} 0, be also open, asshown in fig. '1, the gas and foul air on the floor of the room will be carriedup through B,

will be caught and retained by O. v

It will therefore be manifest that the draught from the fuel and that from the floor of the room, can'be regulated together, to suit any requirements therefrom that may be desired in heating the room, and at. the

same time in preserving the purity of the air therein, with ready facility.

Although the bottom, 0, can be used to close more 'efi'ectually the lower end of B, if desired at any time, its principal function is to catch and retain any falling ashes, soot, or sparks of fire that'may fall from B;

Having thus fully described my improvement, and shown itsutility, v

' What I claim as new, of my invention, and desire to secure by Letters Patent, is confined to the following,

'.[ he coupled damper-plates a and t, in combination with the respective portions A and B of a stove-pipe,-

the same being constructed and arranged tooperate together, substantially as and for the purpose described.

THEOPHILUS HESSENBRUOH.

Witnesses:

BENJ. Monrsos, WM. H, Momsos. 

